Enter T or F depending on whether the statement is true or false. (You must enter T or F -- True and False will not work.) 1. {∅}∈{∅}
2. ∅⊈∅
3. ∅⊆{∅}

The area (a) of a circle with a radius of r is given by the formula and its diameter (d) is given by d=2r. arrange the equations in the correct sequence to rewrite the formula for diameter in terms of the area of the circle.